11222222110111 has 4 divisors (see below), whose sum is σ = 11230730240400. Its totient is φ = 11213713979824.

The previous prime is 11222222110093. The next prime is 11222222110117. The reversal of 11222222110111 is 11101122222211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11222222110111 - 2⁵ = 11222222110079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222222110117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4254063166 + ... + 4254065803.

It is an arithmetic number, because the mean of its divisors is an integer number (2807682560100).

Almost surely, 2^{11222222110111} is an apocalyptic number.

11222222110111 is a deficient number, since it is larger than the sum of its proper divisors (8508130289).

11222222110111 is an equidigital number, since it uses as much as digits as its factorization.

11222222110111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8508130288.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 11222222110111 its reverse (11101122222211), we get a palindrome (22323344332322).

The spelling of 11222222110111 in words is "eleven trillion, two hundred twenty-two billion, two hundred twenty-two million, one hundred ten thousand, one hundred eleven".